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VANGUARD GROUP INC: MPWR position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of VANGUARD GROUP INC on MPWR, newest first. How the timeline and the estimate are built.

VANGUARD GROUP INC held 6,144,593 MPWR shares at 2026-06-30 per its 13F-HR filed 2026-08-13.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 6,144,593 shares
    Change vs previous 13F +43,646 shares

    0.11% of the 13F portfolio, value $8,494,039,579.

    13F-HR 0002100119-26-001527 filed by VANGUARD CAPITAL MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD FIDUCIARY TRUST CO: 279,965 shares
    • Vanguard Investments Australia, Ltd.: 23,921 shares
    • VANGUARD ASSET MANAGEMENT, Ltd: 92,594 shares
    • Vanguard Personalized Indexing Management, LLC: 10,390 shares
    • Vanguard Global Advisers, LLC: 106,109 shares
    • VANGUARD CAPITAL MANAGEMENT LLC: 3,126,756 shares
    • VANGUARD PORTFOLIO MANAGEMENT LLC: 2,504,858 shares

    Acceptance time not in the bulk data set (spec §4.2).

  2. period ended2026-03-31
    13F/A 6,100,947 shares
    Change vs previous 13F +56,643 shares

    0.1% of the 13F portfolio, value $6,670,470,404.

    13F-HR/A 0002100119-26-001311 filed by VANGUARD CAPITAL MANAGEMENT LLC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD FIDUCIARY TRUST CO: 278,499 shares
    • Vanguard Investments Australia, Ltd.: 23,915 shares
    • VANGUARD ASSET MANAGEMENT, Ltd: 81,837 shares
    • Vanguard Personalized Indexing Management, LLC: 10,153 shares
    • Vanguard Global Advisers, LLC: 106,602 shares
    • VANGUARD CAPITAL MANAGEMENT LLC: 3,083,449 shares
    • VANGUARD PORTFOLIO MANAGEMENT LLC: 2,516,492 shares

    Acceptance time not in the bulk data set (spec §4.2).

  3. period ended2025-12-31
    13F 6,044,304 shares
    Change vs previous 13F -38,973 shares

    0.08% of the 13F portfolio, value $5,478,315,374.

    13F-HR 0000102909-26-000031 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD GROUP INC: 6,034,394 shares
    • Vanguard Personalized Indexing Management, LLC: 9,910 shares

    Acceptance time not in the bulk data set (spec §4.2).

  4. period ended2025-09-30
    13F 6,083,277 shares
    Change vs previous 13F +134,329 shares

    0.08% of the 13F portfolio, value $5,600,509,349.

    13F-HR 0000102909-25-000353 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD GROUP INC: 6,074,033 shares
    • Vanguard Personalized Indexing Management, LLC: 9,244 shares

    Acceptance time not in the bulk data set (spec §4.2).

  5. period ended2025-06-30
    13F 5,948,948 shares
    Change vs previous 13F +21,656 shares

    0.07% of the 13F portfolio, value $4,350,942,332.

    13F-HR 0001752724-25-185843 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD GROUP INC: 5,939,946 shares
    • Vanguard Personalized Indexing Management, LLC: 9,002 shares

    Acceptance time not in the bulk data set (spec §4.2).

  6. period ended2025-03-31
    13F 5,927,292 shares
    Change vs previous 13F +97,643 shares

    0.06% of the 13F portfolio, value $3,437,710,772.

    13F-HR 0001752724-25-099331 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD GROUP INC: 5,920,669 shares
    • Vanguard Personalized Indexing Management, LLC: 6,623 shares

    Acceptance time not in the bulk data set (spec §4.2).

  7. period ended2024-12-31
    13F 5,829,649 shares
    Change vs previous 13F +72,799 shares

    0.06% of the 13F portfolio, value $3,449,403,241.

    13F-HR 0001752724-25-022205 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD GROUP INC: 5,824,274 shares
    • Vanguard Personalized Indexing Management, LLC: 5,375 shares

    Acceptance time not in the bulk data set (spec §4.2).

  8. period ended2024-09-30
    13F 5,756,850 shares
    Change vs previous 13F not available

    0.1% of the 13F portfolio, value $5,322,207,713.

    13F-HR 0001752724-24-248565 filed by VANGUARD GROUP INC
    Filed (acceptance time not in the bulk data set), ingested

    • VANGUARD GROUP INC: 5,750,228 shares
    • Vanguard Personalized Indexing Management, LLC: 6,622 shares

    Acceptance time not in the bulk data set (spec §4.2).